The silver is the MacBook Pro, more expensive than the white one. I have just bought DS one for his birthday (as his black MacBook has been well and truly abused)and I think I want to keep it, even though I have a 17" Macbook Pro and a Mac Book Air.
There is definitely something very sexy about the new Mac Book Pro - the Unibody version, it is soooo sleeek!
I spent 6 hours in the Apple store on Tuesday, ( had a few one to one sessions) iPads were flying off the shelf, I wasn't convinced enough to impulse purchase, but wavering, do I really need one as well as an iPhone, Ipod Touch etc etc??